Improvement in compound tools for reaming and squaring- fifes



tutti ema gaat can.

WILLIAM BARRY, oF CHICAGO, ILLINOIS.

Lagers Parent No; 91,261, zaad June 15,1869.

The Schedulefrafened' to'in than Letten Patent and making part of thenm.

To all whom it 'ma/y concern:

Be it known that I, WILLIAM BARRY, of Chicago, in the county of Cook,and State of Illinois, have invented an Improved Tool for Ohucking,Reaming, and

Squaring Pipes; kand I do herebydeclare that the following is a fullandexact description thereofireference being had to the accompanyingdrawings, and letters marked thereon, making a. part of thisdescription, in which- Figure 1 is a perspective representation oftheimproved tool.v

Figure 2, angelevation of the same.

Figure 3, a' verticalseetion.

Figure 4, a perspective representation of the bit for squaringthe end ofapipe, removed from the stock of the tool.'

Figure 5, a view oflthe bit for reaming out the end of'. a pipe, and thekey which holds it inthe stock.

The nature of the present invention consists in the novel constructionand combination ofthe reaming and squaring-bit, together with the stockin which they are tted.

A represents a cylindrical stock, which hasA a shank, G, arranged to fitin a'lathe, and a mortise through it, to receive a bit, B, with whichthe end of a pipe is squared. v

It also has a mortise made through it near the end, to receive the bitE, which reams out the pipe.

The bit B is made of steel, and it is so notched out at b as to lockover the end of the mortise, whenit is secured by the key D, as shown atfigs. 1 and 3, and it is provided with cutting-edges 0, for squariug theend of a pipe, and also with a small reamer, n, fitting closely againstthe stock A, to ont away the inner al1- gllle of the pipe, so that whena screwthread is cutvon t e inner periphery ofthe latter, the metal willnot `be so raised as to prevent the squared ends of two-pipes fromittiug closely together.

The bit E is provided with a shank, 1li/,which isput through the stockA, and fastened with a key,l J. y

The'stock A being. cnt away at F, allows the bit E to cut the requireddepth without being choked.

Opa/ration.

The end, Gr, of the stock A, is to hesecured to the lathe in the usualmanner, and the pipe to be squared and reamed placed in a mandrel, orotherwise held in Y WILLIAM BARRY.

Witnesses:

E. E. GIBSON, G. L. CHAPIN.

